OEM LED Headlight Control Module for 2017-2024 Cadillac, Chevrolet, & GMC

What to Look for When Buying This Part

• Compatibility: Ensure the part is designed for your specific vehicle year, make, and model.
• Condition: Decide whether you want a used OEM or a new aftermarket part.
• Warranty: Check if the part comes with a warranty to protect against defects.
• Seller Reputation: Buy from a reputable seller with good reviews and a clear return policy.

Quality Indicators for the Available Options

| Feature | Used OEM code_of_conduct.txt

Difficulty Level: Moderate

Estimated Time: 1-2 hours

Special Tools Needed:

• Socket set
• Screwdrivers
• Pliers
• Multimeter (optional, for testing)
• Diagnostic scan tool (optional, for clearing codes)

Critical Steps and Tips

1. Disconnect the Battery: Always disconnect the negative terminal of the battery before working on electrical components.
2. Locate the Module: The module is typically located near the headlight assembly. Refer to your vehicle's repair manual for the exact location.
3. Remove the Old Module: Disconnect the wiring harness and remove any screws or clips holding the module in place.
4. Install the New Module: Connect the wiring harness and secure the new module in the same way the old one was installed.
5. Reconnect the Battery: Reconnect the negative terminal of the battery.
6. Test the Headlights: Turn on the headlights to ensure they are working properly.

DIY or Professional Installation?

This repair can be done by a DIYer with some experience working on cars. However, if you are not comfortable working with electrical systems, it is best to have a professional install the module. A professional can also properly diagnose the problem and ensure that the new module is correctly programmed (if necessary).

Compare: Used OEM, New Aftermarket

| Feature | Used OEM

• Headlight Bulbs: When replacing the control module, it's a good idea to check the condition of the headlight bulbs. If they are old or dim, replace them at the same time.
• Wiring Harness: Inspect the wiring harness for any damage or corrosion. If you find any, replace the harness to ensure proper electrical connections.
• Fuses: Check the headlight fuses to make sure they are not blown.

Why Replacing Related Parts Prevents Repeat Failures

Replacing related parts can prevent repeat failures by addressing underlying issues that may have contributed to the original module failure. For example, a damaged wiring harness can cause electrical surges that damage the control module.

How Long This Part Normally Lasts

The typical lifespan of an LED headlight control module is 5-10 years, or 100,000 to 150,000 miles.

Factors That Affect Longevity

• Driving Conditions: Harsh weather conditions, such as extreme heat or cold, can shorten the lifespan of the module.
• Electrical System Health: A healthy electrical system can help prolong the life of the module.
• Quality of the Part: Higher-quality modules tend to last longer.
• Proper Installation: Incorrect installation can damage the module and shorten its lifespan.

Budget vs Mid-Range vs Premium Options

• Used OEM: $50 - $150
• New Aftermarket: $100 - $250

Labor Cost Considerations

Labor costs for replacing the module can range from $100 to $300, depending on the mechanic's hourly rate and the complexity of the job.

Total Job Cost Estimates

• Used OEM + DIY: $50 - $150
• Used OEM + Professional Installation: $150 - $450
• New Aftermarket + DIY: $100 - $250
• New Aftermarket + Professional Installation: $200 - $550

Known Issues for This Vehicle's System Related to This Part

Some owners of 2018-2021 Chevrolet Equinox and GMC Terrain vehicles have reported issues with headlight flickering or failure, sometimes related to the LED headlight control module. These issues can sometimes be intermittent and difficult to diagnose.

Any TSBs or Common Complaints

While there may not be specific Technical Service Bulletins (TSBs) directly related to this module, it's always a good idea to check with your dealer or online resources for any relevant information. Common complaints often involve headlight malfunctions, which may point to this module as a potential culprit.

How to Confirm Proper Operation

1. Turn on the Headlights: Make sure both headlights turn on and are the same brightness.
2. Check High Beams: Verify that the high beams are working correctly.
3. Inspect for Flickering: Look for any flickering or dimming of the headlights.
4. Check for Error Messages: Make sure there are no error messages or warning lights on your dashboard related to the headlights.

What to Look/Listen for to Verify It's Working Correctly

• Consistent Brightness: The headlights should maintain a consistent brightness without flickering.
• Proper Beam Alignment: The headlights should be properly aligned to illuminate the road ahead without blinding oncoming traffic.
• No Unusual Noises: There should be no unusual noises coming from the headlight assembly.

Q: How do I know if it's the headlight control module and not just the LED bulb?
A: If both headlights are out or flickering, it's more likely the control module. If only one headlight is out, try replacing the bulb first. A diagnostic scan can also help pinpoint the problem.

Q: Will this module need to be programmed after installation?
A: In some cases, the module may need to be programmed to your vehicle's computer. Check with your mechanic or the part supplier to confirm if programming is required.

Q: Is it okay to buy a used OEM headlight control module?
A: Yes, a used OEM module can be a good option. They are typically tested and inspected to ensure they are working properly and offer a cost-effective alternative to a new part.

Q: What happens if I install the module incorrectly?
A: Incorrect installation can damage the module or other electrical components. It's important to follow the instructions carefully or have a professional install the module.

Q: How long does it take to replace a headlight control module?
A: The replacement process typically takes 1-2 hours, depending on your experience and the accessibility of the module.

OEM Part Numbers:

• GM: 0837596, 13521013, 13527302, 13534959

Fits Years: 2017 2018 2019 2020 2021 2022 2023 2024